CAC/RCP 1-2003 Recommended international code of practice - General principles of food hygiene
DIN EN 1672-2:2009 Food processing machinery - Basic concepts - Part 2: Hygiene requirements (includes Amendment A1:2009); English version of DIN EN 1672-2:2009-07
DIN EN ISO 22000:2005 Food safety management systems - Requirements for any organization in the food chain (ISO 22000:2005); English version of DIN EN ISO 22000:2005